:root {
  --navy: #1A3A52;
  --blue: #2C5AA0;
  --cream: #F5F5F5;
  --dark: #2D2D2D;
  --gray: #666666;
  --max-width: 800px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: var(--cream);
  padding: 2rem 1.5rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

h1, h2, h3 { color: var(--navy); margin: 1.5rem 0 0.5rem; }
h1 { font-size: 2rem; border-bottom: 2px solid var(--blue); padding-bottom: 0.5rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

p, li { margin-bottom: 0.8rem; }
ul, ol { padding-left: 1.5rem; }

blockquote {
  border-left: 3px solid var(--blue);
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: var(--gray);
  font-style: italic;
}

hr { border: 0; border-top: 1px solid #ccc; margin: 2rem 0; }

nav { display: flex; gap: 1.5rem; margin-bottom: 2rem; flex-wrap: wrap; }
nav a { font-weight: 500; }

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #ddd;
  color: var(--gray);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  body { padding: 1rem; }
  h1 { font-size: 1.6rem; }
}